Inventor · disambiguated record
Johannes Heckmann
Also filed as: HECKMANN JOHANNES
6 granted patents·49 citations·filing 1987–1989
82Inventor score
Files withDRAEGERWERK AG6
Top patents by PatentIndex Score
6 records- 0145US4800067ADevice for detecting gases which must be treated before testingDRAEGERWERK AG·Filed 1987·Granted Jan 24, 1989·11 cites·4 claims
- 0242US4904449AColorimetric gas measuring deviceDRAEGERWERK AG·Filed 1988·Granted Feb 27, 1990·10 cites·11 claims
- 0341US5000919ATesting tube construction for testing gases which are dissolved in liquids and a method of making the sameDRAEGERWERK AG·Filed 1988·Granted Mar 19, 1991·9 cites·10 claims
- 0440US4992738ADevice for the measuring of gas, vapor or aerosol fractions of a measured gasDRAEGERWERK AG·Filed 1989·Granted Feb 12, 1991·9 cites·21 claims
- 0536US5000920ADevice for the heat treatment of gaseous test samplesDRAEGERWERK AG·Filed 1988·Granted Mar 19, 1991·6 cites·17 claims
- 0630US5023055AFlow testerDRAEGERWERK AG·Filed 1988·Granted Jun 11, 1991·4 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →